This Asia-Pacific enterprise telephony market tracker analyzes the trends, go-to-market strategies, and important customer successes. The market is segmented into private branch exchange (PBX), key telephone system (KTS), wireless private branch exchange (WPBX), and Internet Protocol (IP) PBX. This research is based on Frost & Sullivan's proprietary TEAM methodology, which ensures that clients have a complete 360 Degree Perspective to drive decision-making. The base year of the study is 2016, and the forecast period is from 2017 to 2021.